The originals of these books are in the Cornell University Library. The majority were digitized in 2008 with funding by Microsoft Corporation. Scanning was performed by Kirtas Technologies; OCR was performed by, and derivative formats created by, the Internet Archive.
Other digitizing projects followed, adding to this collection. One such project included books and journals in the life sciences and natural history for the purposes of being added to the Biodiversity Heritage Library or https://archive.org/details/biodiversity, a multi-institutional collaboration of which Cornell University Library is a member.
There are no known copyright restrictions in the United States on the use of the texts. More information on rights issues associated with public domain texts can be found at http://cdl.library.cornell.edu/guidelines.html.